A nice thing about running pfsense virtualized.



  • For awhile now, running 2.0 under ESXi (along with several other appliances.)  One handy thing: a couple of times, I've needed to update the firmware and/or make a significant config change.  More than once in the past, I've had the update/change not go well, and backing out was a bit of a PITA (having to restore the old firmware, config, etc…)  In this case it is easy: shutdown pfsense, snapshot the VM in the ESXi management client, power on pfsense, update the firmware/etc, reboot pfsense.  If everything goes well, after a couple of days, I delete the snapshot.  If something pooches, and I need to revert, power off pfsense, revert to the snapshot I took before the changes, power on pfsense, and voila :)  Dunno what similar tricks are available to other types, such as virtualbox, proxmox, etc...


  • Rebel Alliance Developer Netgate

    Yes, snapshotting is a big bonus. Though you can snapshot while a VM is running even, iirc. I know I can in workstation and it works fine.



  • Oh, sure.  Hot snaps.  I've done that too (when upgrading my ubuntu server).  I don't bother in the pfsense case, since the firmware upgrade requires a reboot anyway, and a hot snap is a lot slower (at least given that I have 1GB RAM that it needs to snapshot), versus the cold snap which is 1-2 seconds tops.


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